LLSRK Series -
UL Class RK1 Dual Element Time-Delay Fuse
Littelfuse LLSRK series POWR-PRO™ fuses provide superior overload and
short circuit protection for service entrance, main, feeder and
general-purpose branch circuits up to 600 amperes.
LLSRK series fuses can be installed in existing Class H fuse blocks to
upgrade systems containing lower interrupting rating Class H one-time or
renewable fuses.
Applications:
All general-purpose circuits
Motors
Transformers
Solenoids
Fluorescent lighting
All system components with high in-rush currents
Features:
Extremely current limiting — Reduces damage
to circuits and equipment under short-circuit conditions. Stops
damaging short circuits faster than any mechanical protective device.
300kA Interrupting Rating — Littelfuse self-certified to 300,000
amperes as standard. Meets future trend towards higher available short
circuit currents.
Reduced costs — Current limiting design often permits use of
readily available, less costly equipment. Low resistance design reduces
power consumption and utility bills.
Excellent time delay — True dual-element
construction, with separate non-fatiguing thermally-reversible
spring-loaded thermal overload element, withstands repeated surges
within rated time delay without opening needlessly. Eliminates needless
downtime caused by power surges or equipment demands.
